summaryrefslogtreecommitdiff
path: root/block/nbd.c
diff options
context:
space:
mode:
Diffstat (limited to 'block/nbd.c')
-rw-r--r--block/nbd.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/block/nbd.c b/block/nbd.c
index 6b22ae1d15..882b2dc84a 100644
--- a/block/nbd.c
+++ b/block/nbd.c
@@ -251,6 +251,17 @@ static coroutine_fn int nbd_co_read(BlockDriverState *bs, int64_t sector_num,
return ret;
}
+static coroutine_fn int nbd_co_write(BlockDriverState *bs, int64_t sector_num,
+ const uint8_t *buf, int nb_sectors)
+{
+ int ret;
+ BDRVNBDState *s = bs->opaque;
+ qemu_co_mutex_lock(&s->lock);
+ ret = nbd_write(bs, sector_num, buf, nb_sectors);
+ qemu_co_mutex_unlock(&s->lock);
+ return ret;
+}
+
static void nbd_close(BlockDriverState *bs)
{
BDRVNBDState *s = bs->opaque;
@@ -272,7 +283,7 @@ static BlockDriver bdrv_nbd = {
.instance_size = sizeof(BDRVNBDState),
.bdrv_file_open = nbd_open,
.bdrv_read = nbd_co_read,
- .bdrv_write = nbd_write,
+ .bdrv_write = nbd_co_write,
.bdrv_close = nbd_close,
.bdrv_getlength = nbd_getlength,
.protocol_name = "nbd",